Parameters of Oxidative Stress in Reproductive and Postmenopausal Mexican Women

Bibliographic Data

ID15475170
AuthorsAraceli Montoya-Estrada (0000-0001-5057-2793, Instituto Nacional de Perinatología), Karla Guadalupe Velázquez-Yescas (Instituto Nacional de Perinatología), Daniela Veruete-Bedolla (0000-0003-0423-4931, Instituto Nacional de Perinatología), José David Ruiz-Herrera (Instituto Nacional de Perinatología), Alma Villarreal-Barranca (Instituto Nacional de Perinatología), José Romo‐Yáñez (0000-0002-1145-533X, Instituto Nacional de Perinatología), Guillermo Federico Ortíz-Luna (Instituto Nacional de Perinatología), Arturo Arellano‐Eguiluz (Instituto Nacional de Perinatología), Juan Mario Solís-Paredes (0000-0003-4529-8296, National Institute of Genomic Medicine), Arturo Flores‐Pliego (0000-0001-7876-6098, Instituto Nacional de Perinatología), Aurora Espejel-Núñez (0000-0001-9087-8017, Instituto Nacional de Perinatología), Guadalupe Estrada-Gutierrez (0000-0001-9551-9021, Instituto Nacional de Perinatología), Enrique Reyes-Muñoz (0000-0001-5304-7476, Instituto Nacional de Perinatología, corresponding author)
Year2020
Volume17
Issue5
Pages1492-1492
Publication date2020-02-26
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueInternational Journal of Environmental Research and Public Health (JOURNAL)
Journal identifiersISSN: 1661-7827 • E-ISSN: 1660-4601
PublisherMultidisciplinary Digital Publishing Institute (PUBLISHER • CH)
DOI10.3390/ijerph17051492
OpenAlexW3007933646
LanguageEN
Citations received2

In the reproductive phase, women experience cyclic changes in the ovaries and uterus, and hormones regulate these changes. Menopause is the permanent loss of menstruation after 12 months of amenorrhea. Menopause is also linked to a decrease in estrogen production, causing an imbalance in oxidative stress. We aimed to compare the three stages of lipid peroxidation, protein oxidative damage, and total antioxidant capacity (TAC) between reproductive-aged women (RAW) and postmenopausal women (PMW) in Mexico. We carried out a cross-sectional study with 84 women from Mexico City, including 40 RAW and 44 PMW. To determine the oxidative stress of the participants, several markers of lipid damage were measured: dienes conjugates (DC), lipohydroperoxides (LHP), and malondialdehyde (MDA); exposure to protein carbonyl is indicative of oxidative modified proteins, and TAC is indicative of the antioxidant defense system. Biomarkers of oxidative stress were significantly lower in RAW vs. PMW. DC were 1.31 ± 0.65 vs. 1.7 ± 0.51 pmol DC/mg dry weight (p = 0.0032); LHP were 4.95 ± 2.20 vs. 11.30 ± 4.24 pmol LHP/mg dry weight (p < 0.0001); malondialdehyde was 20.37 ± 8.20 vs. 26.10 ± 8.71 pmol MDA/mg dry weight (p = 0.0030); exposure of protein carbonyl was 3954 ± 884 vs. 4552 ± 1445 pmol PC/mg protein (p = 0.042); and TAC was 7244 ± 1512 vs. 8099 ± 1931 pmol Trolox equivalent/mg protein (p = 0.027). PMW display significantly higher oxidative stress markers compared to RAW; likewise, PMW show a higher TAC

Antioxidant · Antioxidant capacity · Lipid peroxidation · Malondialdehyde · Menopause · Oxidative stress · Trolox · Antioxidant Activity and Oxidative Stress · Chemistry · Glutathione Transferases and Polymorphisms · Medicine · Stress Responses and Cortisol · Biochemistry · Endocrinology · Internal Medicine

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